500. Keyboard Row LeetCode Solution | Easy Approach

Minimum Cost to Merge Stones

Keyboard Row Given an array of strings words, return the words that can be typed using letters of the alphabet on only one row of American keyboard like the image below.

In the American keyboard:

  • the first row consists of the characters "qwertyuiop",
  • the second row consists of the characters "asdfghjkl", and
  • the third row consists of the characters "zxcvbnm".

Example 1:

Input: words = ["Hello","Alaska","Dad","Peace"]
Output: ["Alaska","Dad"]

Example 2:

Input: words = ["omk"]
Output: []

Example 3:

Input: words = ["adsdf","sfd"]
Output: ["adsdf","sfd"]


  • 1 <= words.length <= 20
  • 1 <= words[i].length <= 100
  • words[i] consists of English letters (both lowercase and uppercase). 

Keyboard Row Solutions

Time: O(n)
Space: O(n)


 Will be updated Soon


 Will be updated Soon


  Will be updated Soon

Watch Tutorial

Checkout more Solutions here

Leave a Comment

Your email address will not be published. Required fields are marked *